FAQ

Does CoinMarketCap support historical OHLCV data in Coupler.io?

Yes — set the Data type parameter to historical when configuring your source. However, historical data is only available on paid CoinMarketCap API plans. If you're on the free Basic tier, this option will return empty results.

How do I specify which cryptocurrencies to pull for Quotes?

In the source settings, enter each symbol on a new line in the Cryptocurrency symbols field. Use the official CoinMarketCap ticker (e.g., BTC, ETH, SOL). You must enter at least one symbol — the Quotes entity won't return data without one.

Can I pull data for all cryptocurrencies at once?

For a full market list, use the Listings entity — it returns all ranked cryptocurrencies in one call without requiring symbol input. The Quotes entity is better suited for a targeted watchlist of specific coins.

What's the difference between Listings and Quotes?

Listings returns the full CoinMarketCap ranked table with market cap, volume, supply, and price change data for every tracked coin. Quotes returns detailed pricing data for specific coins you define by symbol. Use Listings for market overviews and Quotes for monitoring a custom set of assets.

Can I combine data from multiple CoinMarketCap entities in one destination?

Yes. Add multiple entities within the same data flow and use Coupler.io's Join transformation to merge them (e.g., join Listings with Quotes on the symbol field), or use Append to stack data from different entities or multiple data flows into one table.

Can I send CoinMarketCap data to an AI tool for analysis?

Absolutely. Coupler.io supports AI destinations including ChatGPT, Claude, Gemini, Perplexity, Cursor, and OpenClaw. Pull your Quotes or Listings data and route it to any of these tools for automated market summaries, trend detection, or portfolio commentary.

How often can I refresh CoinMarketCap data?

You can schedule refreshes as frequently as your CoinMarketCap API plan allows. The free Basic plan has monthly credit limits — each sync run consumes credits. Hourly refreshes are a practical balance for most use cases on a free plan.

Why is my CoinMarketCap data slightly different from the website?

CoinMarketCap prices update continuously. Any data you've pulled reflects the moment of the last sync, not the real-time price. Check the last_updated field in your data to see exactly when the snapshot was taken.

For a full list of available fields and metric definitions, see the Data Overview article. If you're hitting API errors or missing data, check Common Issues for fixes.